Countdown NYE's 2026 lineup is now official. Insomniac has published the full artist roster for its two-day New Year's Eve festival at the NOS Events Center in San Bernardino, confirming a lineup led by Alesso, DJ Snake, Marshmello, Subtronics, Seven Lions, Gordo, Tchami, James Hype, Oliver Heldens and dozens more.

The formal announcement follows an unusual rollout. A Countdown lineup poster surfaced publicly days before the festival's official website displayed the 2026 roster. PrimeEV reported the poster on September 20 while Insomniac's public Countdown lineup page was still showing older material.

Insomniac has now replaced that gap with an official Countdown NYE 2026 lineup page, confirming the artists previously shown on the poster.

Countdown returns to the NOS Events Center for two days on December 31, 2026 and January 1, 2027. Insomniac has announced five covered stages, more than 75 artists, carnival rides, the Galaxy Mall and onsite afterparties for the New Year's Eve event.

Countdown NYE 2026 Lineup

The now-confirmed lineup spans house, bass music, progressive house, tech house and other electronic styles. The official roster includes Alesso, DJ Snake, Marshmello, Subtronics, Seven Lions, Gordo, James Hype, Tchami, Oliver Heldens, Archie Hamilton, Matroda, Walker & Royce, Wax Motif and more.

House and Bass Share the Countdown NYE 2026 Lineup

Countdown continues to cast a wider musical net than many of Insomniac's genre-specific festivals. Alesso, Seven Lions and Oliver Heldens are among the lineup's established festival names, while Subtronics, NGHTMRE, Space Laces and LYNY B2B PEEKABOO give the event a substantial bass presence.

House music also has a notable showing. Gordo, James Hype and Tchami appear alongside Archie Hamilton, Walker & Royce, Wax Motif, Joshwa, Ranger Trucco and Matroda, providing a club-focused counterweight to the larger crossover and bass bookings.

Rinzen and DØMINA add more techno-oriented programming, while TOKiMONSTA, Taiki Nulight, BUNT. and KLOUD further broaden the musical range of the festival.

Countdown Returns to San Bernardino

The 2026 edition marks Countdown's return to the NOS Events Center after Countdown 2025 took place in Los Angeles. The San Bernardino edition returns as a two-day festival with the alien-themed production and multiple stages that have defined the event.

The official Countdown NYE website lists the festival for December 31, 2026 and January 1, 2027 at the NOS Events Center.

Insomniac Makes the Lineup Official

Insomniac's September rollout now closes the gap between the lineup poster that surfaced publicly and the festival's official online presentation. The artists shown on the earlier poster are now listed directly on Countdown's website.

The Countdown homepage says passes return on sale Thursday at 12 p.m. PT. The festival's lineup page is also promoting an SMS presale beginning at 11 a.m. PT.

Artist-by-day assignments, set times and additional event information are expected closer to New Year's Eve.